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73005152 | 1 | /********************************************************************** |
ed902a2b | 2 | * Copyright (c) 2005, 2014 IBM Corporation, Ericsson |
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3 | * All rights reserved. This program and the accompanying materials |
4 | * are made available under the terms of the Eclipse Public License v1.0 | |
5 | * which accompanies this distribution, and is available at | |
6 | * http://www.eclipse.org/legal/epl-v10.html | |
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7 | * |
8 | * Contributors: | |
9 | * IBM - Initial API and implementation | |
10 | * Bernd Hufmann - Updated for TMF | |
73005152 | 11 | **********************************************************************/ |
c8422608 | 12 | |
2bdf0193 | 13 | package org.eclipse.tracecompass.tmf.ui.views.uml2sd.handlers; |
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14 | |
15 | import java.util.Iterator; | |
16 | ||
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17 | import org.eclipse.jface.viewers.ISelection; |
18 | import org.eclipse.jface.viewers.ISelectionProvider; | |
19 | import org.eclipse.jface.viewers.StructuredSelection; | |
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20 | import org.eclipse.tracecompass.internal.tmf.ui.Activator; |
21 | import org.eclipse.tracecompass.internal.tmf.ui.ITmfImageConstants; | |
22 | import org.eclipse.tracecompass.tmf.ui.views.uml2sd.SDView; | |
23 | import org.eclipse.tracecompass.tmf.ui.views.uml2sd.SDWidget; | |
24 | import org.eclipse.tracecompass.tmf.ui.views.uml2sd.core.GraphNode; | |
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25 | |
26 | /** | |
df0b8ff4 | 27 | * Action class implementation to show end of a graph node. |
c8422608 | 28 | * |
df0b8ff4 | 29 | * @version 1.0 |
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30 | * @author sveyrier |
31 | */ | |
cab6c8ff | 32 | public class ShowNodeStart extends BaseSDAction { |
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33 | |
34 | // ------------------------------------------------------------------------ | |
35 | // Constructors | |
36 | // ------------------------------------------------------------------------ | |
11252342 | 37 | |
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38 | /** |
39 | * Default constructor | |
40 | */ | |
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41 | public ShowNodeStart() { |
42 | this(null); | |
43 | } | |
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44 | |
45 | /** | |
46 | * Constructor | |
c8422608 | 47 | * |
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48 | * @param view |
49 | * The sequence diagram view reference | |
cab6c8ff | 50 | * @since 2.0 |
df0b8ff4 | 51 | */ |
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52 | public ShowNodeStart(SDView view) { |
53 | super(view); | |
8fd82db5 | 54 | setImageDescriptor(Activator.getDefault().getImageDescripterFromPath(ITmfImageConstants.IMG_UI_NODE_START)); |
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55 | } |
56 | ||
57 | // ------------------------------------------------------------------------ | |
df0b8ff4 | 58 | // Methods |
73005152 | 59 | // ------------------------------------------------------------------------ |
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60 | |
61 | @Override | |
73005152 | 62 | public void run() { |
cab6c8ff | 63 | if (getView() == null) { |
73005152 | 64 | return; |
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65 | } |
66 | ||
cab6c8ff | 67 | SDWidget sdWidget = getView().getSDWidget(); |
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68 | |
69 | if (sdWidget == null) { | |
70 | return; | |
71 | } | |
df0b8ff4 | 72 | |
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73 | ISelectionProvider selProvider = sdWidget.getSelectionProvider(); |
74 | ISelection sel = selProvider.getSelection(); | |
75 | Object selectedNode = null; | |
5b5b7df5 | 76 | Iterator<Object> it = ((StructuredSelection) sel).iterator(); |
df0b8ff4 | 77 | while (it.hasNext()) { |
73005152 | 78 | selectedNode = it.next(); |
df0b8ff4 | 79 | } |
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80 | if (selectedNode != null) { |
81 | GraphNode node = (GraphNode) selectedNode; | |
df0b8ff4 | 82 | if (node.getX() * sdWidget.getZoomFactor() < sdWidget.getContentsX() + sdWidget.getVisibleWidth() / 2) { |
73005152 | 83 | sdWidget.ensureVisible(Math.round(node.getX() * sdWidget.getZoomFactor() - sdWidget.getVisibleWidth() / (float) 2), Math.round(node.getY() * sdWidget.getZoomFactor())); |
df0b8ff4 | 84 | } else { |
73005152 | 85 | sdWidget.ensureVisible(Math.round(node.getX() * sdWidget.getZoomFactor() + sdWidget.getVisibleWidth() / (float) 2), Math.round(node.getY() * sdWidget.getZoomFactor())); |
df0b8ff4 | 86 | } |
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87 | } |
88 | } | |
73005152 | 89 | } |